Class III medical devices include what

Category C equipment: 6823 medical ultrasound instruments and related equipment, 6824 medical laser instruments and equipment, 6825 medical high-frequency instruments and equipment, 6826 physical therapy and rehabilitation equipment, 6828 medical magnetic **** vibration equipment, 6830 medical X-ray equipment, 6831 medical X-ray accessory equipment and components, 6832 medical high-energy ray equipment, 6833 medical nuclide equipment 6840 clinical testing and analyzing instruments, 6845 extracorporeal circulation and blood treatment equipment, 6854 operating room, emergency room, diagnostic and treatment room equipment and apparatus Ⅲ 6821 medical electronic instruments and equipment, Ⅲ 6822 medical optical apparatus, instruments and endoscopic equipment (contact lenses and their care with liquid class except), Ⅲ 6846 implantable materials and artificial organs, Ⅲ 6877 interventional devices.